Crossfire Gasifier

Gasifier Game Changer

The Crossfire gasifier runs on charcoal, made from woody plant/tree trimmings. Gasification is renewable, sustainable — and with an actively managed forestry and biochar program — carbon neutral. Biochar is recalcitrant carbon, and only breaks down over millennia. Solar PV technology is an amazing tool, but does not sequester carbon, it does not provide additional ecosystem services, or useful byproducts that come with gasification technology.

With atmospheric CO2 at over 400 PPM, it’s time to get real about alternative energy solutions. We need solutions that put carbon back into biomass, and back into the soil — where it belongs.

This gasifier changes the game… Join us.


Electricity from Charcoal, Fire, and Water

What is Gasification?

Gasification is a process that converts organic or fossil fuel based carbonaceous materials into carbon monoxide, hydrogen and carbon dioxide. This is achieved by reacting the material at high temperatures (>700 °C), without combustion, with a controlled amount of oxygen and/or steam.

Syn Gas From Carbon and Water

The Crossfire Gasifier produces syn gas by means of a thermochemical reaction with carbon, water, and air. When incandescent, the charcoal reforms steam. When temperatures are hot (~1,250 °C), the carbon literally grabs the oxygen atom right from the H2O molecule, thus leaving H2 + CO.

Off Grid Power Back-Up

With unpredictable weather patterns, economic turmoil, and with the ever-increasing cost of fossil fuels, it makes good sense to have a power back-up system. With the Crossfire Gasifier, our fuel will store for 1,000’s of years, has multiple uses, and is ready when you need it most.

Gasifier Pricing


$ 5,995

Built to order...


+ GeneratorMost Popular

$ 7,995

Built to order...
Crossfire Gasifier with Honda Generator


+ Hopper

$ 8,995

Built to order...
Crossfire Gasifier with Honda Generator and Hopper


"On my ranch, there are hundreds of oak trees, and thousands of fruit trees that will need pruning. What struck me was the fact that I could power my whole operation with the biomass I already have."

− Jose Fimbres

"Wait a minute... you mean to tell me that it runs an engine on wood and water and its carbon negative, that’s incredible!"

− Brandon Murray

Charcoal Fuel Types

Charcoal Fuel Types

Low Density Charcoal

Examples: Animal Dung, Balsa, Bamboo, Cedar, Corn Stover, Poplar, Spruce

Note: Run-time durations and electrical loads are approximations, as tested with the Honda generator, using aggregated data.

Electrical Load & Duration:

  • 1/2 Load | ~2kW1.82 Hours
  • 3/4 Load | ~3kW1.68 Hours
  • Full Load | ~4kW1.32 Hours

Medium Density Charcoal

Examples: Ash, Black Locust, Birch, Hickory, Oak, Pine, Douglas Fir

Note: Run-time durations and electrical loads are approximations, as tested with the Honda generator, using aggregated data.

Electrical Load & Duration:

  • 1/2 Load | ~2kW2.4 Hours
  • 3/4 Load | ~3kW2.28 Hours
  • Full Load | ~4kW1.8 Hours

High Density Charcoal

Examples: Ironwood, Osage Orange, Pellets, Coconut Shells

Note: Run-time durations and electrical loads are approximations, as tested with the Honda generator, using aggregated data.

Electrical Load & Duration:

  • 1/2 Load | ~2kW3.72 Hours
  • 3/4 Load | ~3kW3.24 Hours
  • Full Load | ~4kW2.52 Hours

Gasifier Performance Specifications

All data that is presented is from our personal observations and during actual running of the Crossfire. This data is subject to change and progress as we will always continue to stretch the limitations of this amazing gasifier technology.

Charcoal / Biochar Making Techniques

Small-Batch Method

Peter Hirst, of New England Biochar, demonstrates the small-batch method of making charcoal in a double-barrel retort.

Biochar Definition

Michael Wittman, of Blue Sky Biochar, provides answers the often-asked question, “What is biochar?”

Cone Kiln Retort

The Kon-Tiki cone kiln is one way to make charcoal. This method might just be the most effective for the price.

Biochar Workshop

Bob Wells, of New England Biochar, shows us how make biochar and demonstrates its many uses.

Agro-forestry Coppicing & Pollarding

Dave Jacke discusses coppicing

A presentation by Dave Jacke, co-author of Edible Forest Gardening, on Coppice Agroforestry. Recorded at NH Permaculture Gathering Aug 23, 2014.

Off Grid Pro strongly encourages regenerative agro-forestry practices, such as the ancient art of tree coppicing and pollarding. We strongly discourage destructive practices, like clear-cutting.

We Support Sustainable & Regenerative Practices



Permaculture is a systems approach. It has many branches that include but are not limited to ecological design, ecological engineering, environmental design, construction and integrated water resources management that develops sustainable architecture, regenerative and self-maintained habitat and agricultural systems modeled from natural ecosystems. The term permaculture (as a systematic method) was first coined by Australians Bill Mollison and David Holmgren in 1978. The word permaculture originally referred to “permanent agriculture” but was expanded to stand also for “permanent culture,” as it was seen that social aspects were integral to a truly sustainable system as inspired by Masanobu Fukuoka’s natural farming philosophy.


Regrarians Framework

‘Regrarian’, a portmanteau of ‘Regenerative Agrarian’, is a term first coined in 2013 by Australian Darren J. Doherty to describe those who are actively undertaking the serious & timely process of regenerating, restoring, rehabilitating, rehabilitating, rekindling (etc.!) & rebooting production landscapes across this planet. Regrarianism as a philosophy and methodology per se is ultimately an expansionist and self-determined reflection of the Regrarians Charter and is therefore not just about landscape regeneration but also about engaging consumers in the knowledge of how they can play a vital role in the support of producers across the world.

Savory Institute

Holistic Management

Holistic management (from ὅλος holos, a Greek word meaning all, whole, entire, total) in agriculture is a systems thinking approach to managing resources that was originally developed by Allan Savory for reversing desertification. In 2010 the Africa Centre for Holistic Management in Zimbabwe, Operation Hope (a “proof of concept” project using holistic management) was named the winner of the 2010 Buckminster Fuller Challenge for “recognizing initiatives which take a comprehensive, anticipatory, design approach to radically advance human well being and the health of our planet’s ecosystems.”

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